Home / 5,419.96-7,470.87-4,091.36

Finding the Fourth Proportional to 5,419.96, 7,470.87 and 4,091.36

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Solution

The fourth proportional to 5,419.96, 7,470.87 and 4,091.36 is: 5,639.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,419.96 : 7,470.87 = 4,091.36 : x
  2. Step 2: Convert to fraction form
    5,419.96/7,470.87 = 4,091.36/x
  3. Step 3: Cross multiply
    5,419.96x = 7,470.87 × 4,091.36
  4. Step 4: Simplify right side
    5,419.96x = 30,566,008.01
  5. Step 5: Solve for x
    x = 30,566,008.01/5,419.96
  6. Step 6: Final answer
    x = 5,639.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.